With The Lego Movie hitting theaters in just four short days, Warner Bros. is already moving forward with a sequel, hiring Jared Stern to work on the screenplay with another unidentified writer.

The Lego Movie is tracking very well, with some box office analysts predicting it may gross more than $40 million in its opening weekend, and that it will easily beat other new releases such as The Monuments Men and Vampire Academy. No voice cast members from The Lego Movie have been confirmed to return, and it isn't known if directors Phil Lord and Chris Miller will be back to direct.

Jared Stern, whose other writing credits include Wreck-It Ralph, The Internship, The Watch, Mr. Popper's Penguins and The Princess and the Frog, is part of a Warner Bros. consortium of writers and directors brought together to help develop animated movies. Phil Lord and Chris Miller, who wrote The Lego Movie, are also a part of this group, along with Nick Stoller, who is working on Storks for the studio, and Glenn Ficarra and John Requa, who are developing Smallfoot. While these writers are all working on their separate projects, they will provide feedback and guidance on the other projects as well.

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The Lego Movie centers on Emmet (voiced by Chris Pratt), who leads a team of heroes on a quest to stop President Business (voiced by Will Ferrell) from destroying their Lego universe.